网络与信息安全学报 ›› 2019, Vol. 5 ›› Issue (5): 32-38.doi: 10.11959/j.issn.2096-109x.2019048

• 专栏:复杂网络环境下的路由技术 • 上一篇    下一篇

基于费马点的网络连通性修复策略

周赵斌1,2, 章红艳3, 汪晓丁1,2()   

  1. 1 福建师范大学数学与信息学院,福建 福州350117
    2 福建省网络安全与密码技术重点实验室,福建 福州350117
    3 福建师范大学协和学院,福建 福州 350117
  • 修回日期:2019-06-06 出版日期:2019-10-15 发布日期:2019-11-02
  • 作者简介:周赵斌(1989- ),男,江西南昌人,福建师范大学实验师,主要研究方向为网络与信息安全和网络编码。|章红艳(1982- ),女,江苏南通人,福建师范大学讲师,网络安全与计算。|汪晓丁(1982- ),男,福建安溪人,博士,福建师范大学副教授,主要研究方向为网络与信息安全、无线通信网络、云计算与物联网。
  • 基金资助:
    国家自然科学基金资助项目(61702103);福建省自然科学基金资助项目(2016J01289);福建省教育厅基金资助项目(JAT160123)

Fermat point based connectivity restoration strategy in networks

Zhaobin ZHOU1,2, Hongyan ZHANG3, Xiaoding WANG1,2()   

  1. 1 College of Mathematics and Informatics,Fujian Normal University,Fuzhou 350117,China
    2 Fujian Provincial Key Lab of Network Security &Cryptology,Fuzhou 350117,China
    3 Concord University College,Fujian Normal University,Fuzhou 350117,China
  • Revised:2019-06-06 Online:2019-10-15 Published:2019-11-02
  • Supported by:
    The National Natural Science Foundation of China(61702103);The Natural Science Foundation of Fujian Province(2016J01289);Fujian Provincial Education Department Project(JAT160123)

摘要:

连通性修复是保证网络有效性、可靠性的重要手段,而目前关于1-连通性修复的策略没有将图形的几何性质与网络的拓扑结构很好地结合,因此难以用最少的中继节点完成修复。将费马点、三角剖分与最小生成树有效结合,设计了一种基于费马点的网络连通性修复策略,并且从理论上证明了该策略的近似比和复杂度分别为 3 3 4 3 与O(n log n),而仿真实验表明该策略在中继节点消耗上明显少于其他同类型策略。

关键词: 网络有效性, 连通性修复, 三角剖分, 费马点

Abstract:

The connectivity restoration ensures the availability and reliability of a network.Both of geometrical features and topological structures should be taken into consideration at the same time,without which previous works can hardly restore the connectivity with the least number of relay nodes.The Fermat point,the triangulation and the minimum spanning tree are integrated with the design of an efficient restoration strategy.The theoretical analysis indicate that the approximation ratio of the proposed strategy is 3 3 4 3 and the complexity of which is O(n log n).Simulation results show that the proposed strategy outperforms other strategies in the number of relay nodes required.

Key words: network availability, connectivity restoration, triangulation, fermat point

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